How to adjust interest in backdated lease

Summary: Based On below

Current Period Open: AUG 2025
Lease Start Date: 29-May-2025
Payment Frequency: Quarterly
Payment Option: In Advance
Lease Term: 60 Months
Lease Classification: Finance Lease
Based on the above details, the system currently calculates 19 payments. However, the requirement is to have:
11 payments of amount ₹613,288.00
8 payments of amount ₹80,995.00

Along with one time payment created for backdated lease but we are not able to add Interest for the same.

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Version (include the version you are using, if applicable): 25 C

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